Home / 719,054.29-992,293.79-396,764.12

Finding the Fourth Proportional to 719,054.29, 992,293.79 and 396,764.12

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Solution

The fourth proportional to 719,054.29, 992,293.79 and 396,764.12 is: 547,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,054.29 : 992,293.79 = 396,764.12 : x
  2. Step 2: Convert to fraction form
    719,054.29/992,293.79 = 396,764.12/x
  3. Step 3: Cross multiply
    719,054.29x = 992,293.79 × 396,764.12
  4. Step 4: Simplify right side
    719,054.29x = 393,706,570,386.99
  5. Step 5: Solve for x
    x = 393,706,570,386.99/719,054.29
  6. Step 6: Final answer
    x = 547,533.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.